2025-11-17 / TYC 4671-00499-1 / (210548) 1999 RY254
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
show Roland BONINSEGNA
O-
VID
M400
BE
GPS
20:54:09
::
::
20:56:07
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km |
More 1 observation found in db: sodis
Available (probably) matching predictions (click on the link to switch):
Using prediction ba0e36a0-ddb8-11f0-547e-36d57f57f24e for map and profile fit
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Event Details
Occultation UUID [and DB] : ba0e36a0-ddb8-11f0-547e-36d57f57f24e [observed]
Occultation Date + Time : 2025-11-17 at 20:37:29 UT +/- 0.35 min [1]
Object Designation : (210548) 1999 RY254
Orbit Class : MBA
Star Designation : GDR3 2431525129663692544
Star Coordinates (ICRF) : RA = 00 25 34.8865, DE = -06 25 09.548 [2]
Star Magnitudes : G = 10.45 mag, RP = 10.06 mag, BP = 10.69 mag
Object Magnitude : V = 19.62 mag
Estimated Magnitude Drop : 9.2 mag
Estimated Max. Duration : 0.4 sec
Object Mean Diameter : 1.90 km (src: astorb)
Speed of the shadow : 5.0 km/s
Elongation to Moon & Sun : 151° (sunlit = 5%), Sun = 127°
Cross-track uncertainty : 17.3 mas = 16 km = 8.82 path-width (1-sig)
RUWE and duplicate source : 4.23 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#38
Note : FP:true
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
(If error 404: link not valid which means no data available)
